Electric croup kettle



v u. 6 m 3 W0 o 1, 5 a 1 mi@ 3 I s, I

Hu www a smw L mK. J www RWM. Rm& Rd Mmm mm JE.

March 24, 1925,

Paten-ted Mar. 24, 1925'.

UNITED STATES PATENTV OFFICE.

TO'J. I1. ROBINSON, INC., OF NEVADA.

ELECTRIC p GROUP RETTLE.

Application ledfSeptember 15, 1923. YSerial No. 662,891.

To all whom t may concern.'

Be it known that I, JOHN LA Run ROBIN- SON, a citizen of thei United States, residing at Reno, in the county of Washoe and State I of Nevada, have. invented certain new and useful Improvements in Electric Croup Kettles; and I do hereby declare the following to be a full, Clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same. j

The invention relates to apparatus for administering vapor inhalation in the treatment of bronchial and other ailments affecting the respiratory organs.

The invention aims to provide an apparatus which is electrically heated and of such construction, as to preclude setting fire to household furniture, bedding, paper, etc., and which prevents burning of the patient or other person administering the inhalation and which will not give off objectionable odors when all the liquid has been vaporized and which may be operated by the unskilled 25 Without causing injury of any nature either to the apparatus, the person, or furniture.

Other objects and advantages will be apparent and suggest themselves as the nature of the invention is understood.

lVhile the drawings illustrate an embodiment of the invention it is to be understood that in adapting the same to meet different conditions and requirements, various changes in the form, proportion and minor details of construction may be resorted to without departing from the nature of the invention.

Referring to the accompanying drawings forming a part of the application:

Figure l is a side view of an inhalation apparatus embodying the invention,

Figure 2 is a sectional view the cover being detached, and

Figure 3 is a horizontal section on the line 3 3 of Figure 2.

Corresponding and like parts are referred to in the following description and designated in the several views of the drawings by like reference characters.

The apparatus comprises an inner receptacle l and an outer receptacle 2, a space being provided between the two receptacles for receiving a lling 3 of insulating and refractory material such as mineral wool. The top of the space formed between the two receptacles is closed by a thick collar 4 of suitable heat resisting material, over which is arranged a metal ring 5 which serves as a retainer and to provide a finish. A suitable cover 6 closes the top of the kettle and has a close joint therewith to prevent the escape of any steam or vapor. The cover 6 may be of any preferred material, such as glass, and is of dome shape and provided with a relatively small opening '7 for theI escape of the steam or vapor which may be utilized in any well known manner according to the nature of the treatment by inhalation.

An electric heating element 8 surrounds the outer wall of the inner receptacle l and may consist of any form of resistant which will become heated by the flow of an electric current therethrough. The electric heating element is disposed adjacent the outer wall of the receptacle l and is insulated therefrom as indicated at 9. An electric cord l0 is connected with the heating element 8 in any well known manner and is adapted to be plugged into the outlet of an electric service in a manner well understood.

The inner receptacle l is preferably of tapering form and its upper edge is beaded to overlap the collar 4 and assist in holding it in place. The receptacle 2 is inwardly crimped at l1 to further assist in holding the collar 4t in place. A metal band 12 is fitted to the lower edge of the cover 6 and maintains a close it with the upper en'd of the receptacle l as the coefficient of expansion of each is the same.

What is claimed is:

l. An inhalation apparatus comprising an outer receptacle, a thick collar of heat resisting material positioned within and secured to the upper end of said receptacle, an inner receptacle passing through and supported by the collar in Ii'Xed spaced relation to the outer receptacle, and an electric heating unit for the inner receptacle.

2. An inhalation apparatus comprising an outer receptacle having an inner rib adjacent its upper' end, a ring secured to the upper end of the receptacle, a thick collar of heat resisting material positioned between and secured in place by said rib and ring, an inner receptacle passing through and supported by the collar in fixed spaced relation to the Outer receptacle, and an electric heating unit for the inner receptacle.

3. An inhalation apparatus comprising an outer receptacle having an inner rib adjacent its upper-end e ring seen-red to the upper end "of lthe receptaclm 4 kthick 6611er l,of heat resisting material positioned between and secured elpla by said rbendng 5 an inner reept'aele 'passing thrOghfndsupported by the collar in fixed spe'ed Arelti'n to the outer receptacle',l an elet/rig *heating unit'for the inner receptacle, the inner receptacle being Inadeof net'l, "and-fa netal 10 band remevably fitted in the upper end of the inner receipt-gliele `and':c'arryir1g la jnonn'let'aie eter -v-prvided with 'en aperture Jfor the escape of steam and vapor.

eltegstimszny. wher-eef MHX my Signature in presence-of Witnesses.

QHN LA RUE ROBINSON. Wtness'es' JNE 203m',

NATAUE GOODMAN. 

